Police say an adult male who is making a purchase hands a clerk a $100 bill, disputes the change he receives, confuses the clerk and leaves with the change and the $100 bill.

The thefts happened on the following days:

October 6 at approximately 5:55 p.m. in the 2000 block of 18th Street, NW

October 9 at approximately 3:30 p.m. in the 2600 block of Georgia Avenue, NW

October 29 at approximately 6:30 p.m. in the 1600 block of 17th Street, NW

The person of interest in the first theft was described as being a black male with a medium complexion, 60 to 65 years of age, short hair or bald, officials said.

The person of interest in the second theft was described as being a black male, with a medium complexion, at least 40 years old, 6'0 to 6'3" tall, officials said.

The person of interest in the third was described as a black male, with a medium complexion, approximately 60 to 65 years of age, 5'8" to 6'0" in height. He was last seen wearing a plaid shirt, officials said.

Anyone with information that can assist in the identification of this person is asked to call the police at (202) 727-9099. Additionally, anonymous information may be submitted to the department's TEXT TIP LINE by text messaging 50411.